Bob Newhart

Some months ago, we heard the surprising news that TNT would look to adapt its Noah Wyle-starring adventurer film trilogy, 'The Librarian,' for an ongoing TV series, with Wyle potentially reprising the title role. Now, the cable network has made things official with a 10-episode order and a cast that includes Rebecca Romijn, John Larroquette, and original series stars Bob Newhart and Jane Curtin.

Even in light of the genius flowing through 'The Big Bang Theory,' this seems like a no-brainer. Following a highly publicized guest turn as Sheldon (Jim Parsons)'s childhood hero Professor Proton, legendary sitcom star Bob Newhart has been announced to return for season 7 in a recurring capacity, but will anything prove different about his return role?

A few weeks ago, we learned that CBS' highest-rated sitcom 'The Big Bang Theory' had a major bit of sitcom history in its corner, as famed comedian and 'Newhart' star Bob Newhart had signed on for a guest appearance portraying one of Sheldon's childhood heroes. Now, the first images of Newhart on set as "Professor Proton" have arrived, while new talk suggests the character could return in the show's seventh season! Get a sneak peek of "The Proton Resurgence" inside!

Whether or not you believe the massively rated and Emmy-winning CBS comedy 'The Big Bang Theory' deserves to rank among the better sitcoms of our age, the guest-star heavy three-camera series is getting a visit from one of the all-time greats. Legendary 'Bob Newhart Show' star and sitcom great Bob Newhart will make an appearance on an upcoming episode of 'The Big Bang Theory,' but what about him could be such a big deal to Sheldon and Leonard?